Excitation of higher harmonic gratings in AC-field biased photorefractive crystals

We analyze the nonlinear excitation of holographic gratings in a photorefractive crystal being subject to an alternating electric field and a stationary light interference pattern. The influence of the higher harmonics on the fundamental grating is illustrated for the case where a crystal of Bi 12Si...

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Veröffentlicht in:Optics communications 1998-08, Vol.154 (1), p.93-99
Hauptverfasser: Pedersen, Henrik C., Johansen, Per M., Podivilov, Evgeny V., Webb, D.J.
Format: Artikel
Sprache:eng
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Zusammenfassung:We analyze the nonlinear excitation of holographic gratings in a photorefractive crystal being subject to an alternating electric field and a stationary light interference pattern. The influence of the higher harmonics on the fundamental grating is illustrated for the case where a crystal of Bi 12SiO 20 is the recording medium. We analyze both the steady state and the transient consequences of the higher harmonic excitation.
ISSN:0030-4018
1873-0310
DOI:10.1016/S0030-4018(98)00232-6